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Mathematics 7 Online
OpenStudy (anonymous):

Write a proof. Given: AB*BE=CB*BD Prove: triangle ABC~triangle DBE

OpenStudy (anonymous):

OpenStudy (juicstice):

do you know how to do proofs

OpenStudy (anonymous):

Eh... Not very well

OpenStudy (juicstice):

okay well I haven't done one for over a year but I still got some stuff that I could tell you. tbh I kinda miss proofs

OpenStudy (anonymous):

Alrighty

OpenStudy (anonymous):

Haha nice

OpenStudy (juicstice):

Angle DBE is ~ to angle ABC because vertical angles are ~

OpenStudy (anonymous):

Ok

OpenStudy (juicstice):

Angle CAB is ~ to DBA. I don't remember what the theorem is called but I know that is ~

OpenStudy (juicstice):

so we have 2 angle that are ~ so that means we only need a side to be ~ to solve this. Do you think you could tell me what that side is?

OpenStudy (anonymous):

DEB?

OpenStudy (anonymous):

I've got all I need from here, I got the question, thank you!

OpenStudy (juicstice):

I'll give it away and say that the reason these triangles are ~ is because of ASA. the sides that are going to be ~ are side AB and side BD. I'm sorry but I know what I'm doing I'm just having a hard time remembering what the name of the reason is called

OpenStudy (anonymous):

I know, thank you for all of your help! Geometry can be confusing. But I got it! :)

OpenStudy (juicstice):

oh and a word of advice mark the triangle with the ~ signs that the your teacher probably told you. It helps so much

OpenStudy (anonymous):

Okay, I will! Thanks!

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